4493846199221 has 2 divisors, whose sum is σ = 4493846199222. Its totient is φ = 4493846199220.

The previous prime is 4493846199217. The next prime is 4493846199253. The reversal of 4493846199221 is 1229916483944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3147111480100 + 1346734719121 = 1774010^2 + 1160489^2 .

It is a cyclic number.

It is not a de Polignac number, because 4493846199221 - 2² = 4493846199217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4493846199281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2246923099610 + 2246923099611.

It is an arithmetic number, because the mean of its divisors is an integer number (2246923099611).

Almost surely, 2^{4493846199221} is an apocalyptic number.

It is an amenable number.

4493846199221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4493846199221 is an equidigital number, since it uses as much as digits as its factorization.

4493846199221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26873856, while the sum is 62.

The spelling of 4493846199221 in words is "four trillion, four hundred ninety-three billion, eight hundred forty-six million, one hundred ninety-nine thousand, two hundred twenty-one".